Razor-stropping machine.



J. H. GLAUSS.

RAZOR STROPPING MACHINE.

APPLICATION FILED JULY 27, 1912.

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ATTORNEY Patented Jan. 6, 1914.

fig Z COLUMBIA PLANOGRAPH COnWASHlNOTON, D. C.

TTNTT STAT T FTQ JOHN H. CLAUSS, OF TOLEDO, OHIO, ASSIGNOR TO THE NEVERFAIL COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

RAZOR-STROPEING MACHINE.

To all whom it may concern Be it known that 1, JOHN H. CLAUss, a citizenof the United States, residing at T0- ledo, in the county of Lucas,State of Ohio, have invented certain new and useful Improvements inRazor-stropping Machines; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to thecharacters of reference marked thereon, which form a part of thisspecification.

This invention relates to stropping machines designed for stropping theblades of razors of all types, and consists in the construction andarrangement of parts hereinafter more fully set forth and pointed outparticularly in the claims.

The object of the invention is to provide a stropping machine ofcomparatively simple and inexpensive construct-ion wherein thearrangement is such, that, as the strop is drawn longitudinally throughthe machine in forward and reverse direction the blade will besuccessively swung from side to side into contact with the running faceof the strop to effect the desired abrasive action, provision being madefor resisting the movement of the blade holder by spring tension wherebysaid holder shall be returned to the neutral position centrally betweenthe side portions of the strop whenever tension upon the strop isrelaxed, there by causing the blade to swing away from the face of thestrop so as to obviate the strop becoming out upon a change in thedirection of movement thereof. The above object is attained by themechanism illustrated in the accompanying drawings, in which Figure 1 isa general View in perspective of a stropping machine embodying my invention. Fig. 2 is a horizontal section through the machine on a largerscale, showing the parts in the inoperative position with the bladeholder held upon its pivot centrally between the side portions of thestrop. Fig. 3 is a similar view of the device in an operative position,showing the blade holder swung by the operation of drawing upon thestrop so as to carry the edge of the blade into contact with theoutwardly running portion thereof. Fig. 4 is a view Specification ofLetters Patent.

Application filed July 27, 1912.

Patented Jan. 6, 1914:.

Serial No. 711,824.

similar to Fig. 3, showing the blade holder swung in the oppositedirection. Fig. 5 is a fragmentary view in section, showing theconnection between the pivoted actuating frame and the pivoted bladeholder, whereby the blade holder is caused to swing from side to side asthe actuating frame is oscillated. Fig. 6 is a fragmentary view inperspective, illustrating the parts shown in Fig. 5 and in additionthereto the spring element through the function of which the bladeholder is returned to the central or neutral position when tension uponthe strop is re laxed.

Referring to the drawings by the characters of reference marked thereon,1 designates the side portions of the main tri-lateral frame, which areconnected by the integral cross pieces 2 at the end in which is mountedthe swiveled ring 3. The side portions 1 of the frame are connected nearthe front by the rods 4: whose ends are riveted in the side pieces, andwhich are embraced by the sleeves 5. At the front the side pieces areconnected by the rod 6, embraced by a sleeve 7 Mounted between the sidesof the main frame, at the rear thereof, is a pivoted or oscillatoryframe comprising the end portions 8 connected at their extremities bythe shafts 9 embraced by the sleeves 10. Riveted at its ends in the sidepieces of the main frame is a rod 11 which passes through the endportions 8 of the oscillatory frame and :lforms the axis upon which saidframe oscilates.

The blade holder 12 is provided with the converging jaws 13 betweenwhich a blade 14 is adapted to be inserted, there being within the bladeholder a curved spring 15, the tension of which is exerted to force thetapering blade outwardly between the converging jaws to properlyposition the blade therein. Each end of the blade holder is providedwith a rearwardly projecting extension 16. These extensions arepivotally mounted intermediate the ends thereof upon a rod 17 whose endsare secured in the sides 1 of the main frame. Rigidly mounted at itsends in the terminals of the extensions 16 of the blade holder, asclearly shown at 18 in Fig. 5, is a rod 19. Extending inwardly from eachof the end portions 8 of the oscillatory frame is an arm 20 havin anotch. 21 in the free end thereof which loosely receives the rod 19, asclearly shown in Figs. 5 and 6, whereby a hinged'or jointed connectionis effected between the arms 20 of the oscillatory frame and theextensions of the blade holder, which will cause said blade holder toswing upon its pivot or fulcrum rod 17 as the oscillatory frame isactuated.

Mounted upon the fulcrum rod 17 of the blade holder is a coiled spring22, the terminals of which are formed into rearwardly extending arms 23and 24, respectively. These arms are bent so as to cross each other, theupper arm 23 lying upon one side of the rods 11 and 19, and the lowerarm 24 lying upon the opposite sides of said rods. When the oscillatoryframe is swung upon its pivot rod 11 the notched arms 20 of said frameengaging the rod 19, mounted in the terminals of the extensions 16 ofthe blade holder, will cause the rod 19 to swing in the arc of a circleconcentric with the pivot rod 17 on which the blade holder is mountedand will swing the blade holder in the opposite direction to carry theblade into contact with the strop. This movement of the rod 19, if tothe right as shown in Fig. 4, will carry it into contact with the springarm 28 and swing said arm outwardly against the tension of said springwhich is held from turning upon the rod 17 by the spring arm 24, the endof which remains in engagement with the rod 11, thereby placing thespring under such tension that when the oscillatory frame is releasedthe spring arm 23 will force the rod 19 back to the neutral or firstposition, as shown in Fig. 2, thereby returning the blade holder to aposition equidistant between the sides of the strop 25. When the pivotedor oscillatory frame is actuated to swing the rod 19 to the left, asshown in Fig. 3, it will be carried into engagement with the spring arm24, thereby springing said arm outwardly and tensioning the spring 22,the arm 23 in this movement remaining in resisting engagement with therod 11. The tension stored in the spring 22 by the movement of the arm24 just described will be exerted to again restore the parts to theneutral or normal position.

The strop 25 is looped over the rollers 10, and the terminals of theside portions thereof passed forwardly through the machine so as to lieagainst the inner sides of the sleeves upon the rods 4. The ends of thestrop are provided with hand rings 26 to enable the strop to beactuated.

As the terminals of the strop are alternately drawn upon to cause it toreciprocate longitudinally through the machine the oscillatory framewill be actuated to swing the blade holder and carry the edge of theblade successively into contact with the outwardly running portion ofthe strop, as

will be well understood in the art, thereby effectin a proper sharpeningof the blade. The tension of the spring 22 exerted through its arms 23and 24 is such that at the termination of each stroke of the strop inits reciprocatory movement the blade holder will be swung to carry theedge of the blade free from the strop as soon as the tension upon thestrop is relaxed at the end of each outward pull, thereby obviating theliability of the strop becoming cut at the instant the direction ofmovement thereof through the machine is changed. The tension of thespring 22 also normally holds the blade holder centrally between thesides of the strop so that the strop is not likely to become out when ablade is inserted into or withdrawn from said holder.

Having thus fully set forth my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A stropping machine comprising a main frame, a blade holder pivotallymounted therein having a rearwardly projecting end portion, anoscillatory frame pivotally mounted in the main frame, an'arm projectingradially from the axis of the oscillatory frame and having a pivotalconnection with the rearwardly projecting end portion of the bladeholder, a coil spring having projecting terminals, a member lyingbetween said terminals connected with the projecting end port-ion of theblade holder, and an abutment member also lying between said terminalswith which their terminals successively engage.

2. A. stropping machine comprising a main frame, a blad holder pivotallymounted therein having rearwardly projecting end portions, a rod mountedin the main frame 1 5 forming the fulcrum of said blade holder andpassing through said projecting end portions, an oscillatory frame, astrop looped over the oscillatory frame for actuating it, a rod mountedin the main frame and passing through said oscillatory frame forming theaxis upon which said oscillatory frame oscillates, an arm extending fromeach end of the oscillatory frame, a rod extending between andconnecting the projecting end portions of the blade holder, said armshaving notches which engage said connecting rod, a coiled spring mountedupon the fulcrum rod of the blade holder, said spring having extendingterminals .which lie on opposite sides of the rod connecting theprojecting end portions of'the blade holder, whereby, as the bladeholder is swung through the operation of the oscillatory frame, saidspring is placedun-v der tension through the movement of said connectingrod.

3. A stropping machine comprising a main frame, a blade holder pivotedtherein, an oscillatory frame pivoted in the main 13o frame, connectingmeans between the oscillatory frame and the blade holder for impartingmovement from the former to the latter, a strop looped over theoscillatory frame for actuating it, a movable member connected with thepivoted blade holder, a coiled spring having terminal portions lying oneach side of said movable member, and an abutment member disposedbetween the terminal portions of said spring to be successively engagedthereby as the oscillatory frame is actuated.

4:. A stropping machine comprising a main frame, a blade holder havingan extension, a rod set in the main frame on which said extension ispivoted, a rod mounted in the free end of said extension,

an oscillatory frame, a rod seated in the main frame on which saidoscillatory frame is pivoted, a strop looped over the oscillatory frame,a coiled spring mounted on the pivot rod of the blade holder, theterminals of said spring extending in the form of parallel arms onopposite sides of the rod mounted in the free end of the extension ofthe blade holder, the terminals of said spring arms lying on oppositesides of the pivot rod of the oscillatory frame.

In testimony whereof, I sign this specification in the presence of twowitnesses.

JOHN H. CLAUSS. Witnesses:

M. K. HOWELL, W. M. SANGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

